Welding monitoring and adjusting system and welding adjusting method for connecting pipe of sealing head of nuclear power pressure vessel

Abstract

The invention discloses a welding monitoring and adjusting system and a welding adjusting method for a connecting pipe of a sealing head of a nuclear power pressure vessel. The system comprises a digital micrometer, a data acquisition controller and a measurement processing and displaying device, wherein the digital micrometer is arranged in a preset datum point position on the measured connectingpipe for measuring and recording the datum point position of the connecting pipe and the position change of the connecting pipe to obtain position change track data of the connecting pipe; the data acquisition controller is connected to the digital micrometer to acquire the position change track data of the connecting pipe measured and recorded by the digital micrometer; and the measurement processing and displaying device acquires and displays the position change track data of the connecting pipe sent by the data acquisition controller, automatically analyzes and resolves the position changetrack data of the connecting pipe to obtain a connecting pipe position adjusting result and display the connecting pipe position adjusting result for indicating adjustment of a welding position and awelding quantity so as to make sure that deformation of the connecting pipe is controlled within a preset required range. According to the system, the welding position and the welding quantity are adjusted in real time, deformation of the connecting pipe is controlled within a tolerance required range, a welding adjusting scheme is put forward, and a product meets a design demand.

Description

technical field [0001] The invention relates to the technical field of nuclear power monitoring systems, in particular to a monitoring and adjustment system and a welding adjustment method for the head joint welding of nuclear power pressure vessels. Background technique [0002] There are many joints on the head of the nuclear power pressure vessel, which are mainly connected to the head by welding. Due to the irregular shape of the head, the large size of the connecting pipe and high precision requirements, the welding process is prone to deformation due to uneven and asymmetric welding volume, and the position is difficult to control. [0003] The traditional method is: use the laser tracker to re-measure the connection position every welding period, and manually formulate the adjustment plan, which is extremely inefficient. Secondly, due to the limitation of on-site welding stations, it is sometimes difficult for the laser tracker to measure the reference and the measur...

AI Technical Summary

Problems solved by technology

Due to the irregular shape of the head, the large size of the connecting pipe and high precision requirements, the welding process is prone to deformation due to uneven and asymmetrical welding volume, and the position is difficult to control

[0003] The traditional method is: use the laser tracker to re-measure the connection position every welding period, and manually formulate the adjustment plan, which is extremely inefficient

Secondly, due to the limitation of on-site welding stations, it is sometimes difficult for the laser tracker to measure the reference and the measured object at the same time. It needs to be measured by transferring stations, transferring references, etc., and the measurement accuracy is also lost.

At the same time, the welding adjustment plan is given by manual calculation, and the degree of refinement is not enough

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